62546

Appears in sequences

• Number of n X 4 binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.at n=6A228386
• Number of n X 7 binary arrays with top left value 1 and no two 1's adjacent horizontally or vertically.at n=3A228389
• T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.at n=48A228390
• T(n,k)=Number of nXk binary arrays with top left value 1 and no two ones adjacent horizontally or vertically.at n=51A228390
• a(n) = ((1 + y)^n - (1 - y)^n)/y with y = sqrt(8).at n=9A305492
• a(n) = Sum_{d|n} d^d * binomial(n/d-1,d-1).at n=35A376018